Update userguide and welcome pages.

This is the first userguide export on the Postgres-based translation tool
(previously it used MySQL), so please double-check it extra carefully.
(I spotted a few minor problems in the export and fixed the relevant
bugs already.)

docs/userguide/pl/desktop-applets/processcontroller.html

@@ -49,7 +49,7 @@
 </ul>
 <span>
  «  <a href="powerstatus.html">PowerStatus</a> 
-::  <a href="../desktop-applets.html" class="uplink">Desktop Applets</a> 
+::  <a href="../desktop-applets.html" class="uplink">Aplety pulpitu</a> 
 ::  <a href="workspaces.html">Workspaces</a>  »
 </span></div>
 </div>
@@ -62,7 +62,7 @@
 <table summary="layout" border="0" cellspacing="0" cellpadding="2">
 <tr><td>Deskbar:</td><td style="width:15px;"></td><td><span class="menu">Desktop Applets</span></td></tr>
 <tr><td>Ścieżka:</td><td></td><td><span class="path">/boot/system/apps/ProcessController</span></td></tr>
-<tr><td>Ustawienia:</td><td></td><td><i>none</i></td></tr>
+<tr><td>Ustawienia:</td><td></td><td><i>brak</i></td></tr>
 </table>
 
 <p><img src="../images/processcontroller-images/applet.png" alt="ProcessController applet" style="float:left;margin: 0 1em 0 0" />The primary task of the ProcessController applet is to show the activity of your CPU(s) and the amount of used memory. It allows monitoring of individual teams, change their priority, and kill them if the program freezes. In multiprocessor environments it allows you to disable individual processors/cores. When Tracker or Deskbar crash you can restart them from ProcessController's menu.</p>
@@ -103,7 +103,7 @@ To remove the applet again from the Deskbar, uncheck <span class="menu">Live in
 <div class="nav">
 <div class="inner"><span>
 «  <a href="powerstatus.html">PowerStatus</a> 
-::  <a href="../desktop-applets.html" class="uplink">Desktop Applets</a> 
+::  <a href="../desktop-applets.html" class="uplink">Aplety pulpitu</a> 
 ::  <a href="workspaces.html">Workspaces</a>  »
 </span></div>
 </div>